Trigger lock



FIG. 1 is an environmental view illustrating the best mode of my trigger lock disposed upon a typical gun;

FIG. 2 is an enlarged, front elevational view of my trigger lock;

FIG. 3 is an enlarged, rear elevational view thereof;

FIG. 4 is a left side elevational view thereof taken generally from a position indicated by lines 44 in FIG. 2;

FIG. 5 is a right side elevational view thereof taken generally from a position indicated by lines 55 is FIG. 2;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of a firearm in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a trigger lock, as shown and described. 